From 2e55d890fce01db9e27ef7a908d6512a03f26e82 Mon Sep 17 00:00:00 2001
From: blueloveTH <blueloveth@hclcat.games>
Date: Sat, 12 Nov 2022 00:29:41 +0800
Subject: [PATCH] Update compiler.h

---
 src/compiler.h | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/compiler.h b/src/compiler.h
index 62138fb1..1b28e9cf 100644
--- a/src/compiler.h
+++ b/src/compiler.h
@@ -186,8 +186,9 @@ public:
                 case '<': parser->setNextTwoCharToken('=', TK("<"), TK("<=")); return;
                 case '+': parser->setNextTwoCharToken('=', TK("+"), TK("+=")); return;
                 case '-': {
-                    if(isdigit(parser->peekChar())) eatNumber();
-                    else parser->setNextTwoCharToken('=', TK("-"), TK("-="));
+                    // if(isdigit(parser->peekChar())) eatNumber();
+                    // we cannot treat it as literal number, since we will fail on f(n-1) case
+                    parser->setNextTwoCharToken('=', TK("-"), TK("-="));
                     return;
                 }
                 case '!':